Wtf is crowtitium @7:59. Couldnt figure out the proper spelling so cant find what it means.

*learn *talks

Adding video to channels (Learn, Talks) - requested by eric3579.

oh god he really does go off on a tangent

had to look up myself, http://www.thefreedictionary.com/quotidian

Haven't watched the video yet, but I'll save you some time if you have no idea what the answer is: Deleted files don't go anywhere. Basically, the pointer to the file on the hard drive is just marked as deleted, but the data stays where it was before deletion.

This is why (on Windows) you can easily undelete from the recycle bin.

Your deleted files can be recoverable for a very long time because the data will sit there until some other data is saved in the same location. And even in that case, most of the original data might still go untouched for a long time.

This is how forensic computer geeks are able to recover all the dirty secrets you thought were really deleted.

To really delete something, the entire file's saved data needs to be overwritten. There's a lot of great software like Eraser that you can use to do this easily.

Ah, so this is what liberal arts majors do. Videos like this.

missing the point of this video..

I was pretty sure that files in the recycle bin do not have their pointers removed yet and that they are really just "moved" into a folder with special rules. I thought the pointer got removed when they were really deleted.

BTW, your link has a typo in it. Also, I can plug DBAN which does the same sort of thing, but for the entire hard disk.

10¹⁰⁰ = Googol

The universe gets deleted after Googol years.

Coincidence?

I suppose you could consider it going on a tangent but I think it's more escalating the topic to the point of being interesting. Anyone who has been around computers for a long time knows how file deletion works and all of us have seen video or movies about people piecing together shredded documents.

The connection to life and information is quite relevant to the topic of deletion. In fact I believe even Stephen Hawking concerned himself with the concept of information loss (deletion) with regards to blackholes and the problems with conservation of energy (energy in the form of entropy). The resolution he came to involved the outer edge of a blackhole maintaining a version of this information forever.

If you expand the scope of the definition of information to be a specific state of the universe at a point in time, including its complex members (ie us and our consciousness), and remove the temporal importance of "now" then we are all information about states of the universe at varying points in its existence.

The point at which even that basic information (the current unique state of the universe) becomes erased or irrelevant (ie heat death when there is a perfectly homogenous distribution of energy throughout the universe) is quite interesting and depressing. At that point any record of the past and the ability to discern one moment of time from the next is gone. With no variation in the universe even time itself becomes impossible to measure unless your an objective viewer of the universe (God?).

I've personally recovered documents and even simple software from formatted hard-drives and flash drives It doesn't always work, but it's surprising how easy it is when it does, and how much information you can recover.